title: Colovesical fistula diagnosed by unconventional procedure.
mesh_terms: D000368:Aged; D003108:Colonic Diseases / Q000175:diagnosis*; D006801:Humans; D007412:Intestinal Fistula / Q000175:diagnosis*; D008297:Male; D001747:Urinary Bladder Fistula / Q000175:diagnosis*